I also received the same letter for the medical.I was interviewed last April.I hope that they,at least,extend the validity period.Still a friend of mine,in aviation business but not with EK,moved to UK because of prices,even it seems like they are dropping,and if looking for a lease the bank rates are up to 12%.Also been told that Abu Dhabi helped Dubai just for the overall confidence of UAE,otherwise they wouldn't mind seen Dubai crashing or at least behave like the rest of the Emirates.Then it will be boring to live there.